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78121-76-3

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78121-76-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78121-76-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,2 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 78121-76:
(7*7)+(6*8)+(5*1)+(4*2)+(3*1)+(2*7)+(1*6)=133
133 % 10 = 3
So 78121-76-3 is a valid CAS Registry Number.

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